ORP standard solutions allow you to test the precision of ORP electrodes. For example, by immersing the electrode in HI 7022 solution, you should read 470 mV @ 25°C/77°F
If the reading is outside the indicated interval, clean and condition your ORP electrode in HANNA® pretreatment solution. Use HI 7092 for oxidizing or HI 7091 for reducing pretreatment.
| Weight | 0.000 kg |
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Pufferlösung pH 4.01, 25 Beutel à 20 ml, ±0,01pH, Analysezertifikat
All Product
Pufferlösung pH 11.00, 500 ml Flasche, ±0,01pH, mit Analysezertifikat
All Product
Pufferlösung pH 1.00, 25 Beutel à 20 ml, ±0,01pH, Analysezertifikat
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Pufferlösung pH 5.00, 25 Beutel à 20 ml, ±0,01pH, Analysezertifikat
All Product
Pufferlösung pH 9.00, 25 Beutel à 20 ml, ±0,01pH, Analysezertifikat
081-855-1842
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HI706 Checker HC ® - Phosphorous, HR 
เครื่องวัดอุณหภูมิอาหาร 
HI98128 pH/°C-Tester (0.01 pH resolution) - waterproof 
